徳永千奈美 (Tokunaga Chinami) is a former Japanese idol, actress, and model previously managed by UP-FRONT PROMOTION. She is a former member of Hello! Project, having joined as a member of Hello! Project Kids in 2002 and later debuting as a member of Berryz Koubou in 2004. During her time in Hello! Project, she was also a member of ZYX-α, BeriKyuu, DIY♡, and Mellowquad. She graduated from Hello! Project on March 3, 2015 in a joint graduation concert with the other members of Berryz Koubou. Since then, she had been on hiatus as of November 25, 2015 to study abroad and learn English in New Zealand. On February 28, 2021, Tokunaga’s contract with UP-FRONT PROMOTION expired, and she subsequently left the company to work a new job that made use of the English skills she had obtained while studying abroad.